A homogenous mixture that is mainly composed of water is referred to as a(n) __________ solution.
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That acid rain has lowered the ph of a particular lake to ph 5.0. the hydroxide ion concentration of this lake is
1 × 10^-9 mol of hydroxide ions per liter of lake water
pH + pOH = 14
pOH = 14 - 5
pOH = 9.00
pOH = -log [OH⁻]
[OH⁻] = 10^-pOH
[OH⁻] = mol
Therefore,
the hydroxide ion concentration of this lake is 1 × 10^-9 mol
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